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Physio question

Discussion in 'NBDE Exams & Licensure Exams' started by wise146, Aug 11, 2006.

  1. wise146

    wise146 Senior Member
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    I keep seeing this question show up on exams and I am not certain:

    Which of the following characterizes the generator potential of a receptor?

    A All or none response
    B Graded according to the strength of the stimulus


    Please help!
     
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  3. ems5184

    ems5184 Denist (future)
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    Generator potential refers to the all or none response (A). In essence, it is the change in voltage required to "generate" an action potential. Yeah I know you're not supposed to use the word in the definition but oh well :)

    B is also somewhat true but not as good of an answer. The potential is never graded according to stimulus strength HOWEVER the frequency of action potentials can be graded according to this. Hope this helps! Gotta love those neuroscience majors ;)



     
  4. wise146

    wise146 Senior Member
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    Are you positive, I was leaning toward B
     
  5. wise146

    wise146 Senior Member
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    for anyone that cares about this question:

    Same question is found March '81 #39 answer is graded
     

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